Ventilator for water-closets.



K. S. BLANGHARD.

VENTILATOR FOR WATER GLOSETS.

APPLICATION FILED AUG. 15, 1911.

A Pro/"(Ek- Patented ma 7,1912.

2 sum-Hanna 1.

K. s. BLANGHARD. v VENTILATOR FOR WATER GLOSETS. APPLICATION FILED AUG.15, 1911.

Patented {Ig y 7, 1912.

2 ums-mm 2.

UNITED STATES PATENT OFFICE.

KIRK S. BLANCHARD, 0F BROOKLYN, NEW YORK.

VENTILATOR FOR WATER-CLOSETS.

To all whom it may concern.

Be it known that I, KIRK S. BLANOIIARD, of Brooklyn, in'the county ofKings, in the State of New York, have invented new and usefulImprovements in Ventilators for Water-Closets, of which the following,taken in connection with the accompanying drawings, is a full, clear,and exact description.

This invention relates to certain improve' ments in ventilators forwater closets of the class set forth in my Patent #996,906 issued July4, 1911, in which a suitable suction device connected to the interior ofthe bowl is driven by a water motor discharging into the tank and towhich the water underpressure is supplied through one branch of a watersupply pipe having another branch passage leading directly into the tankwith separate valves for controlling the passage of water through bothpassages, the valve for the direct passage being controlled by a floatin the tank. These several mechanisms are preferably located within thetank and owing to the fact that the available space within the interiorof the tank is relatively small it has become necessary to devise somemeans for reducing the number of units and still carry out the mainobject of setting the ventilating device in motion automatically orvoluntarily by the depression of the seat so that the ventilating actionwill continue as long as the seat is occupied and at the same time willcause the delivery of extra amount of water into the tank for lightflushing of the bowl during such action independently of the ball cock,flush valve and their operating mechanisms.

One of the objects, therefore, of my invention is to simplify theconstruction and operation of the entire ventilating mechanism and tobring all of the elements into a more compact-space by arranging all ofthe valves exclusiveof the flush valve within a single valve case inclose permanent connection with the motor and fan case.

Another object is to render the motor controlling valvedependent uponthe action of the valve which controls the supply of water to the ballcock so that when the main valve is in its normal open position, themotor valve will be closed and when the main valve is closed the motorvalve will be opened, both of these actions being inde- Specification ofLetters Patent.

Application filed August 15, 1911.

Patented May '7, 1912. vSerial No. 644,133.

pendent on the ballcock which is controlled by the rise and fall of thewater in the tank through the medium of the float.

A still further object is to provide means for normally holding the seatin a slightly elevated position.

Other objects anduses relating to specific parts of the apparatus willbe brought out in the following description:

In the drawings-Figure 1 is an elevation partly broken away of thegreater portion of my improved ventilating apparatus showing a portionofthe bottom of a flush tank within which the motor, suction fan andvalve case together with portions of the suction pipe are mounted,portions of the flush valve and its operating mechanism and also therefill pipe being illustrated in the same figure. Fig. Qis a horizontalsectional view through the motor and fan taken on line 22 Fig. 1 showingthe valve case and valve operating mechanism in top plan. Figs. 8, 4 and5 are sectional views through the valve case and valves therein taken respectively on lines 33, 44c and 5-5 Fig. 2. Fig. 6 is an end elevationof the detached cam and link operated thereby for imparting motion fromthe main controlling valve to the motor valve. Fig. 7 is a top plan of aportion of a. closet and seat showing the ventilating pipes, seatelevating spring and mechanism for transmitting motion from 'the seat tothe main controlling valve. Fig. '8 is a side elevation partly insection of the ventilating pipes shown in Fig. 7 together with adjacentportions of the lever and link and connections for transmitting motionfromthe seat to the main valve. Fig. 9 is a side elevation of a portionof a bowl and seat together with the seat lifting spring and plungeractuated by the depression of said seat.

In order that my invention may be clearly understood, I have shownportions of. a bowl A and flush tank B, the bowl A being provided with asuitable seat a Whichmay be. mounted in any wellknown manner upon thebowl for vertical rockin movement relatively thereto, leaving sufficientintervening clearance between the rearportions of the bowl and seatforthe reception of a laterally flaring section of a suction pipehereinafter described.

.tured lugs 11.

The ventilating apparatus forming the subject matter of this inventionis mounted within or upon the flush tank -B and comprises among otherelements a rotary suction fan -1 and a coaxial water motor 2* both ofwhich are mounted within a suitable inclosing case -3 and upon a shaft-4E journaled therein, the fan chamber and motor chamber being separatedfrom each other by a partition 5 as best seen in Fig. 2.

The fan case or chamber -1-- is preferably circular and provided in itsouter side with a central inlet -6- and is also provided with atangential outlet -7 in its peripheral wall, the inlet 6 being connectedto a suction pipe 8 which extends downwardly through the bottom of thetank B and is provided at its lower end with a laterally swingingsection 9 which is comparatively thin vertically and flared laterally toeasily flt in the opening between the rear sides of the seat and bowl aspreviously mentioned. The section 9 is preferably pivoted at 10- to theadjacent end of the section 8 so as to be easily adjustable to conformto the position of the bowl relatively to the suction pipe and ifnecessary may be fastened to the bowl or to the supporting frame (notshown) for the seat for which purpose it isprovided with laterallyprojecting aper- Leading from the outlet 7- is a suitable pipe 12- whichmay extend to the exterior of the building or to any other ventilatingpipe or flue not necessary to herein illustrate or describe.

The motor chamber is provided with a substantially tangential inlet 13--in its peripheral wall and an outlet pipe 14- extending downwardlytherefrom and discharging into the interior of the tank ]3 which isprovided with the usual flush pipe b having its upper end projecting ashort distance above the bottom of the tank and forming a seat for aflush valve b the latter being connected by a rod 15 and chain 16 to asuitable hand-operated lever -17. An overflow pipe -18 is connected tothe inner end of the flush pipe -b directly beneath the valve seat toprovide for overflow in excess of a predetermined quantity of water inthe tank, thereby determining the normal level of such water. A valvecase 19 is located within the tank ]3 and connected by a pipe l9 to theinlet 13 of the motor chamber of the casing 1 for conducting the motorfluid thereto. This valve case is provided with an inlet -20- andseparate outlets -21 and 22, the inlet 20 being connected to a supplypipe -23 for the motive fluid such as water under pressure and is inpermanent communication with the outlet port -21-.

Communication between the inlet 20- and outlet 22 is controlled by amain valve 24L consisting of a rock shaft having an opening 25--therethrough movable into and out of registration with the outlet 22- asbest seen in Figs. 3 and 5. The outlet 21 is provided with a motorcontrolling valve -26 as shown in Figs. 3 and t while the outlet -22 isprovided with a float controlled valve -27 as shown in Fig. 5.

When the tank B is filled to a predetermined level with water and themotor and fan are at rest, the valves 26 and 27 are closed and the mainvalve -24t is open so that the water pressure is normally on both of thevalves -26- and -27. The action of the valve 26- is dependent upon theoperation of the valve 24 as will be hereinafter more fully described,while the action of the valve 27 is controlled by the rise and fall ofwater in the tank through the medium of a float 8 and suit-ableconnections with the valve 27.

As shown in Fig. 1 the float -28- is connected by a rod 29- to aclamping head 30 which is clamped by a pivotal bolt -31- to one end of alever 32 having its other end pivoted by a screw -33 to suitable lugs onthe valve casing 18-, the intermediate portion of said lever 32- beingpivotally connected by a link 84: to the outer end of the valve 27 sothat when the float is raised by the rising level of the water in thetank, the valve 27- will be closed, said valve being opened by the fallof the float when the water in the tank recedes by the opening of theflush valve Z This action of the float valve is therefore entirelyindependent of the main valve 24 or motor controlling valve 26.

The valve 24: extends laterally through suitable glands in oppositesides of the valve case and is provided at one end with a crank arm 35-which is connected by a link 36 to the upper offset end of an operatingrod --37. This rod 37 is preferably movable vertically within andthrough the opposite ends of the suction pipe "8 and as shown in Fig. 4is connected to a suitable hand piece 38 by which it may be operated toopen and close the valve -24..

In practice, however, I prefer to operate the valve -24L automaticallyby suitable connections between the rod -37 and seat a and for thispurpose I have shown the seat as normally and yieldingly held in aslightly elevated position by means of a spring 40 having one endsecured to the section 9 of the suction pipe and its other end extendingsome distance forwardly and upwardly and adapted to bear against theunderside of the seat for holding the front edge of the latter somedistance above the rim of the bowl.

Secured to the underside of the seat is a pendant projection 4-lbearingagainst a suitable roller on the front end of a plunger rod fh3 which isslidably mount-ed upon the section --9- as best seen in Fig. 9. The rearend of this plunger rod is pivotally connected to the short arm of alever 44 which in turn is pivoted to the top of the section 9 and hasits other longer arm connected by a link it5- to one arm of a bell cranklever -46. This bell crank lever is pivoted to suitable lugs on thelower end of the suction pipe 8 and has its other arm connected to theoperating rod 37- for the valve --2aso that as the seat is depressedagainst the action of the spring -40 by the occupant, the pendantshoulder -4lwill force the plunger -43- rearwardly and thereby operatethe lever 44 and its connection 4t5 with the operating rod 37 to drawthe latter downwardly and thus close the valve -2t. The end of the valve-24 opposite that to which the crank arm 5 is secured is provided with acam or eccentric 48, the lower and upper sides of which are engaged by ayoke -4L9 having its upper end connected by a link 50 to suitable lugson the valve casing -l8, the valve 26 being connected to theintermediate portion of the link 50. The cam or eccentric 48 is adjustedso as to close and open the motor controlling valve 26- as the mainvalve 2l is opened and closed respectively. That is, when the main valve-24t is turned from its normal open position to its closed position bythe depression of the seat a and connections between said seat andvalve, the cam or eccentric -t8 is similarly rocked to open the motorcontrolling valve 26 through the medium of the yoke 49, and link 50,thereby allowing the motor fluid as water to pass to the motor foroperating said motor and fan.

It is now evident that this motor and fan will continue to operate aslong as the seat -aremains in its depressed position for the purpose ofdrawing the vitiated air from the bowl and that immediately upon the release of such pressure the seat will. be elevated by the spring i3- andthereby cause the opening of the main valve 24 and consequent closing ofthe motor c011- trolling valve 26--.

When desired the lever -17 may be operated to open the flush valve Z)and allow the water to pass from the tank to the bowl which causes adepression of the float .2S and consequent opening of the valve -27 toadmit a new supply of water to said tank through the outlet -22- anddownwardly extending pipe -14 leading therefrom. As the tank continuesto fill to a predetermined level, the float 28-- will be correspondinglyelevated to close the valve 27- ready for repetition of the operationpreviously described.

After the bowl has been properly flushed it is desirable to supplyadditional water thereto and for this purpose I have provided what iscommonly known as a refill pipe 51-- having one end connected to achamber "52 in the valve casing -48- surrounding the inner end of thefloat controlling valve 2l-.

The operation of my invention will now be readily understood withreference to the foregoing description and the accompanying drawings,and while I have shown a cam or eccentric on the end of the main valveand suitable connections for operating the motor controlling valve, itis evi dent that other forms of connections may be employed withoutdeparting from the spirit of my invention.

What I claim is:

1. Ventilating apparatus for water closets in combination with a bowland flush tank, a suction device, a water motor for said device, a valvecasing having an inlet and separate outlets, one of said outlets leadingto the motor, separate valves for said outlets, float operated means forcontrolling one of the valves, a main valve controlling communicationbetween the inlet and the outlet in which said float controlled valve islocated, means actuated by the main valve for controlling the operationof the other valve, and means for operating the main valve.

2. Ventilating apparatus for water closets in combination with a bowland a flush tank, a suction device communicating with the bowl, a watermotor for said device, a water supply pipe, a valve casing having aninlet connected to said water supply pipe and provided with separateoutlets, one of said outlets discharging directly into the tank and theother outlet discharging into the motor, a normally open valvecontrolling communication between the inlet and one of said outlets,means actuated by said valve for closing and opening the other outlet asthe valve is opened and closed respectively, a float operated valve forcontrolling the discharge of water through the outlet leading directlyinto the tank, and means for operating the first named valve.

3. The combination with a closet bowl having a vertically movable seatspring pressed upwardly from the bowl and depressible against the actionof the spring, and a flush tank, of a ventilating apparatus comprising asuction device having a suction pipe connected to the bowl, a watermotor for the suction device, a water supply &

pipe, a valve casing having an inlet connected to the supply pipe andprovided with separate outlets, one of said outlets discharging directlyinto the tank and the other outlet discharging into the motor, anormally open valve controlling connnunication between the inlet and theoutlet which discharges into the tank, means actuated by the seat Whendepressed for closing said valve, an additional valve controllingcommunication between the inlet and motor, and means actuated by thefirst named valve for opening the additional valve when the first namedvalve is closed.

In Witness whereof I have hereunto set my hand on this first day ofAugust 1911.

KIRK S. BLANGI-IARD. WVitnesses:

GEORGE F. SEWARD, GEORGE R. STURSBERG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

